Feed-water heater for locomotives.



PATENTED JAN-'13, 1903'.

A; IE-POX.

FEED WATER HEATER r03 LOCOMOTIVES.

APPLICATION I ILBD MAY 26 1902.

K0 MODEL.

Wiliuzoou UNITED STATES PATENT, OFFIcE.

ALBERT T. FOX, OF,DULUTH, MINNESOTA.

FEED-WATER HEATER FOR LOCOMOTIVES.

SPECIFICATION formingpart of Letters Patent N 0. 718,200, dated January 13, 1903. Application filed May'ZB, 1902. Serial No. 108,979- (No model.)

To all whom it may concern:

Be it known that I, ALBERT T. FOX, a citizen of the United States, residing at Duluth, in the county of-St. Louis and State of Minnesota, have invented certain new and useful Improvements in Feed-Water Heaters for L0- comotives, of which the following is a full, exact, and clear description, reference being had to the accompanying drawings, in which- Figure 1 is a side view of a locomotive equipped with my improved feed water heater, and Fig. 2 is a sectional view on the line 2 2 of Fig. l.

The object of my invention'is to provide a feed-water heater for locomotives which is simple and inexpensive of structure and can be applied to and removed from any locomotive without alterations in the-locomotive bein g necessary or without interfering with the access to or any of the machinery on said locomotive or with the lagging of the boiler.

My object is to provide a feed-water heater which will absorb the requisite amount of heat for heating the feed-water from the exterior face of the extension-front and will be of safe construction and not interfere with the angle of vision from the locomotive-cab.

In accomplishing the above objects I convert the extension-front or smoke-arch of a modern locomotive into a water-leg adapted to absorb radiating heat from the smoke-box and relieve many of the smaller parts on the front of a locomotive from the injurious heat to which they are subjected.

Referring to the drawings in detail, 1 represents a locomotive, on the front'end or extension-front of which, over the smoke-arch and surrounding the stack, is positioned a semicircular air and water tight shell or casing 2 of suitable depth and having flanges 3, bolted or riveted tothe smoke-arch 4:.

5 is a supply-pipe leading from the tank 6 in the locomotive-tender to the lowest level of shell or casing 2 and having interposed therein a flexible connection 7. Between the locomotive and tender 8 is a check-valve in pipe 5.

9 is a pipe having its inner end 10 at the highest point within the shell or casing 2 and connecting said shell or casing 2 with a pump 11.

12 is a suitable water-pipe connection between the pumpll and boiler-of the locomotive and havingtherein a suitable checkvalve 13 at the entrance of said pipe 12 to the boiler.

14 is a steam-supply pipe connected at one end to the top of the boiler near the steamdome 15.

16 is a throttle-valve in pipe 14;, regulating the entrance of steam to said pipe 14.

17 is an exhaust-pipe from pump 11, which may be connected with the smoke-arch of the locomotive. If desired, the air-brake exhaustpipe may also be connected with the smokearch. Furthermore, if desired, an ordinary injector-pipe connection may be used in addition to the pump 11, nor would the spirit of my invention be departed from were such injector used instead of the pump 11.

18 is a cleaning-door of usual construction, save that the same communicates with the interior of the smoke-arch through a short air and water tight sleeve between the shells 4 and 2. g

The headlight of the locomotive (not shown) will be positioned upon the shell or casing 2 instead of upon the smoke-arch, as heretofore, as will also the smoke-box and frame-braces 19. A suitable opening to the shell or casing 2 may be provided for the purpose of filling or cleaning the same. 1 Such opening must of course be provided with an air-tight closure.

The operation of mydevice is as follows: The pump 11 being started by opening throttle-valve 16 will create a vacuum in casing.

2, which if check-valve 8 be open will cause water to be drawn from the tank 6 on the locomotive-tender to said shell or casing 2, entering the same at the lowest point therein and gradually rising until the level of pipe 9 at point 10 within said casing is reached,

when the water is drawn down pipe 9 to pump casing, and a sleeve connecting said door- 10 opening and the interior of said smoke-box.

The foregoing specification signed this 20th day of May, 1902.

following is What I claim as new therein and desire to secure by Letters Patent:

1. In a feed-water heater, a Water-casing comprisingasemieircular shell having flanges secured to the smoke-arch of a locomotive to AI BERT T O form an air and Water tight joint. J l

2. The combination in a feed-Water heater, 1 of a water-casing positioned over the smoke- I box of a locomotive, a cleaning-door in said In presence of- JULEs J. DURAGE, DAVID M. DE VORE. 

